African Americans and Caribbean Hispanics showed higher incidence of dementia than other population groups in a recent systematic review of literature. Researchers reviewed a total of 1,215 studies to identify incidence and prevalence of dementia in racial and ethnic populations in the US; 114 were included. They found:

• Dementia prevalence rates reported for age 65+ years from a low of 6.3% in Japanese Americans, 12.9% in Caribbean Hispanic Americans, 12.2% in Guamanian Chamorro, and ranged wide in African Americans from 7.2% to 20.9%.
• Dementia annual incidence for African American and Caribbean Hispanic populations were significantly higher than Mexican American, Japanese American, and non-Latino white populations.
• A nationwide community approach is recommended to identify communities at high risk and to tailor culturally appropriate services accordingly.